Door lock

Abstract

The deadbolting means of the lock according to the invention comprise a locking piece ( 15 ) to establish and release the locking of the deadbolting means in the deadbolting position. The locking piece is pivotably supported on the lock body ( 3 ) and comprises a mechanical control part ( 19 ) and at least one electrical control part ( 20 A, 20 B). The mechanical control part is functionally linked to a mechanical controller. The electrical control part is functionally linked to an electric actuator.

The invention claimed is: 
     
       1. A door lock, comprising:
 a lock body fitted with a front plate, the lock body having a dual-action bolt that is moveable with reciprocating linear motion between a withdrawn position and a locking position protruding out from the lock body through a bolt opening in the front plate, said bolt being spring-loaded towards said protruding position; 
 deadbolting means configured to be moved to a deadbolting position in which said deadbolting means prevent the dual-action bolt from being moved from the protruding position to the position withdrawn in the lock body; and 
 both an electric actuator and a mechanical controller to control the deadbolting means, 
 wherein the deadbolting means comprise a locking piece to establish and release the locking of the deadbolting means in the deadbolting position, said locking piece being pivotably supported on the lock body and comprising a mechanical control part and at least one electrical control part, 
 wherein the mechanical control part is connected to the mechanical controller and the electrical control part is connected to the electric actuator, said locking piece being arranged so that when mechanical control is used, turning of the locking piece in relation to the lock body takes place without resistance from the electric actuator, and 
 wherein the electric actuator comprises a shaft that is partially inside the electric actuator, and said shaft is configured to be linearly moved in the shaft direction, and the door lock comprises a shaft element that is connected to the shaft, while the shaft element comprises two arms, and the shaft element is functionally connected to the electrical control part of the locking piece from either of the arms, while a support for the locking piece remains between the arms. 
 
     
     
       2. A door lock according to  claim 1 , wherein the electrical control 30 part is a groove and that the arm of the shaft element comprises a projection that can be arranged to a functional connection with the edge of the groove. 
     
     
       3. A door lock according to  claim 2 , wherein the electrical control part is a projection and that the arm of the shaft element comprises a groove, and said projection can be arranged to a functional connection with the edge of the groove. 
     
     
       4. A door lock according to  claim 2 , wherein the projection is a screw or a cylindrical pin configured to create said functional connection with the edge of the groove, and there is an arm-specific screw/cylindrical pin for both arms, the arms have a first control groove and a second control groove for the screws/cylindrical pins, and the locking piece can be turned using shaft element control by means of the control groove of either of the arms,
 the connection from said shaft element control to either of the locking piece control grooves can be chosen by turning either one of the screws/cylindrical pins to form a projection while the other screw/cylindrical pin does not form a projection. 
 
     
     
       5. A door lock according to  claim 4 , wherein with the connection chosen for the first control groove, the electric actuator is arranged to release the locking of the deadbolting means formed by the locking piece in the deadbolting position,
 and with the connection chosen for the second control groove, a de-energized state of the electric actuator is arranged to release the locking of the deadbolting means formed by the locking piece in the deadbolting position. 
 
     
     
       6. A door lock according to  claim 5 , wherein the door lock in which the second control groove has been chosen comprises a spring arranged to push the shaft of the electric actuator and the shaft element away from the electric actuator. 
     
     
       7. A door lock according to  claim 1 , wherein the door lock comprises a first spring that is connected to the lock body and the locking piece and arranged to turn the locking piece in relation to the support towards the locked position of the locking piece. 
     
     
       8. A door lock according to  claim 7 , wherein the locking piece comprises a circular surface to form a locking surface arrangeable to lock the deadbolting means in the deadbolting position, the normal line of said circular surface being parallel to the radius of the shaft formed by the support of the locking piece. 
     
     
       9. A door lock according to  claim 8 , wherein the locking piece is a roll that is pivoting in relation to the support. 
     
     
       10. A door lock according to  claim 1 , wherein the arms of the shaft element are combined to form a ring with the support for the locking piece inside. 
     
     
       11. A door lock according to  claim 1 , wherein the mechanical controller comprises an auxiliary bolt or a cylinder body. 
     
     
       12. A door lock according to  claim 1 , wherein the mechanical control part is a groove or projection. 
     
     
       13. A door lock according  claim 1 , wherein the electrical actuator is a solenoid, electric motor, piezoelectric motor or smart metal actuator.